Some non-trivial Kazhdan-Lusztig coefficients of an affine Weyl group of type Ãn

被引：0

作者：

Leonard Scott

NanHua Xi

机构：

[1] University of Virginia,Department of Mathematics

[2] Chinese Academy of Sciences,Hua Loo

来源：

Science China Mathematics | 2010年 / 53卷

关键词：

Kazhdan-Lusztig coefficient; Kazhdan-Lusztig polynomial; first extension group; 20C08; 20G05;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

In this paper we show that the leading coefficient µ(y,w) of some Kazhdan-Lusztig polynomials Py,w with y,w in an affine Weyl group of type Ãn is n + 2. This fact has some consequences on the dimension of first extension groups of finite groups of Lie type with irreducible coefficients.

引用

页码：1919 / 1930

页数：11

共 26 条

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